Polymer Film Retarder

Meadowlark Optics is pleased to present our Bare Polymer Retarder film. Our proprietary polymer film provides high retardance accuracy in a cost effective product which can be provided in almost any configuration and quantity. The temperature dependence of the nominal retardance is approximately 0.01%/°C, which provides a very stable and versatile polarization solution.

Manufactured in-house for wavelengths between 400 and 1800nm, this retarder is ideal for applications requiring a high precision, thin and cost effective solution. We are also able to tune the retardance to your Angle of Incidence to optimize performance. AR coatings are available on a special order basis.

Standard shapes and retardance values are available when quick turn-around is needed. We can also accommodate requests for custom shapes, sizes (up to 4 inches) and retardance values.

Please contact a Meadowlark Optics Sales Engineer for assistance with your custom requirements.

SPECIFICATIONS

• Substrate Material: Polymer Film
• Thickness: 0.003 inch (~76.2 µm), nominal
• Retardance Ranges: Single Layer 20 –1600, Double Layer  nm 1600 –3000 nm
• Reflectance: ~4% per surface
• Retardance Variation: ≤ 2%/inch
• Retardance Accuracy: ±λ/300
• Acceptance Angle: ±6˚
• Transmitted Wavefront Distortion (per inch): ≤ 2λ (P-V @ 633 nm) ≤ λ/2 (RMS @ 633 nm)
• Surface Quality: 80 –50 scratch-dig
• Beam Deviation: ≤ 30 arc sec
• Operating Temperature: -40˚C to +60˚C